I have 6 grandchildren, I bought them 5 for Christmas. All said 5 years and older. Our kids who were much older than 5 years old couldn't assemble them and when an adult did they didn't work properly. When they realized they were not to be played with, they threw them all in a box. If not I would return all 5 sets and buy something else. I was very disappointed with these gear products.
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